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JPL Small-Body Database Browser
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74163 (1998 QA104)
Classification: Main-belt Asteroid          SPK-ID: 2074163
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779925783886812 5.2373e-08  
a 2.614032167750504 1.4744e-08 au
q 2.148753842221638 1.4211e-07 au
i 7.300728872519072 5.1799e-06 deg
node 39.34076509031299 2.9384e-05 deg
peri 345.1728832926852 3.1595e-05 deg
M 296.0163248520308 1.0505e-05 deg
tp 2458874.866762942542
(2020-Jan-26.36676294)
4.5833e-05 TDB
period 1543.706803819789
4.23
1.3061e-05
3.576e-08
d
yr
n .2332049059505384 1.973e-09 deg/d
Q 3.07931049327937 1.7368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      21556 days (59.02 yr)  
   first obs. used      1960-10-25  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52604  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:50:31  

Additional Information
 Earth MOID = 1.15311 au 
 Jupiter MOID = 2.37059 au 
 T_jup = 3.374 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO449468  

74163 (1998 QA104)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QA104 = 2002 QD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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